73 Magazine September 2003 (#514) (Final Issue) Just Hang'er Up - Clear out your closets with this fun WARC tri-band dipole ...... W4DAN 10 Portable Pulse Generator - Build this pocket-size test instrument that's useful in a wide variety of lab and service tasks ...... Sellen 13 Be a Caribbean HEARO - How about a little mini-DX from the USVI?... W9CGl 18 73 Repaired My TV - Thanks, guys! ...... W6MIK 22 The Ins and Outs of Parts Substitution - Part 2: Specific devices ...... W6WTU 26 Simple...
Topics: radio, amateur, digital, tuner, ham, circuit, antenna, september, output, amateur radio, radio...
73 Magazine August 2003 (#513) Clamp-on DC Ammeter - A project suitable for ham radio? Of cores ...... W6WTU 10 The Ins and Outs of Parts Substitution - Part 1: Understanding the basics ...... W6WTU 18 How to Check Transistors with an Ohmmeter - Or: Let's cheat ...... W9QKC 23 Two Monitors Are Better Than One - Run tandem screens and really impress 'em ...... W6PNW 25 Travels with Henryk -Part 14 - Do Not Pass Go(a) ...... SM0JHF 26 Easy Audio Tracer - How does this project sound? ...... AA2JZ...
Topics: morse, radio, amateur, code, antenna, mhz, august, ham, circuit, ghz, amateur radio, morse code,...
73 Magazine July 2003 (#512) Inside the ARRL -the REAL Story - Show this to your ARRL Director if you want ham radio to survive ...... K2QAI 10 World Radiosport Team Championships -2002 - A photoreport ...... SM0JHF 14 Getting Back a Gertsch - Adventures in refurbishing a Singer-Gertsch FM-9 frequency/deviation meter ...... W6WTU 18 Yes, I Built Sixteen log Periodic Antennas! - Part 2: Assembly ...... W4AEO 24 Batteries to the Max! - An expert tells us how to get the most out of 'em .........
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73 Magazine June 2003 (#511) QRP Antenna Showdown - What's the best antenna to use with your QRP rig? ...... K7UGQ 10 Field Day 2002: Out on Our Own - Can you spell duct tape? ...... WA9PYH 14 Now Hear This! - Home-brew yourself a magnetic headphone ...... N4HCJ 18 Yes, I Built Sixteen Log Periodic Antennas! - Part 1: Theory and tests ...... W4AEO 20 Travels with Henryk -Part 13 - Borneo hams strut their stuff ...... SM0JHF 30 Reverse Breakdown Voltage Measurement Adapter - Build this simple...
Topics: amateur, radio, antenna, mhz, antennas, coax, digital, satellite, june, amateur radio, radio today,...
73 Magazine May 2003 (#510) Tunable Broadcast Band Filter - Another great project from K8ZOA ...... K8ZOA 10 How to Avoid a Disaster Disaster - And how about putting the field back in Field Day? ...... WB9YBM 22 Ready, Set... Don't Go? - The time for preparation to be a meaningful participant in the next emergency situation is before the event occurs ...... AA2JZ 23 'Quaker Oaths - In 1989, the ARS came through... is it still ready? ...... WA6ITF 24 Ham vs. Power Outage - Here's a solution that...
Topics: radio, amateur, power, tuning, coupling, inverter, frequency, ham, photo, amateur radio, radio...
73 Magazine April 2003 (#509) Right Fancy CPO - A keyer from My Kid Brother ...... K8MKB 10 Ham's Handy Heat Hunter - Let this temperature probe take your shack's temperatures ...... KC5MFY 20 Ozzie's Jupi-Loop - Use an aircore balun with your Ten-Tee Jupiter ...... W5RK 23 Ishmod Update -Trams ...... 24 Travels with Henryk -Part 11 - Adoring the Azores..... SM0JHF 27 The Interrelationship of the Coriolis Force, the Helix Effect, and So-called Einstein Antennas - As usual, 73 takes you right to...
Topics: amateur, radio, battery, mhz, antenna, april, ham, frequency, smbus, amateur radio, radio today,...
73 Magazine March 2003 (#508) Build Your DREAM Antenna - As in Dual-suspension, Removable, Easy-to-build, Amateur-radio, Multiple-band, 10-meter mobile antenna system ...... AC3L 10 All Keyed Up - Over this neat project ...... K8ZOA 14 Junkbox Telephone Recording Adapter - Caught on tape ...... KC5MFY 21 Meter Made - Here's how to recycle those VU meters in old stereos ...... N2DCH 23 Autobiography of Everyham -Part 1 - How many times do you see yourself in this story? ...... WB9YBM 26 All...
Topics: radio, amateur, antenna, mhz, frequency, march, photo, digital, circuit, amateur radio, radio...
73 Magazine February 2003 (#507) Cheap & Easy Portable HF Vertical - Try this medium-weight, sturdy, neat, visually pleasing, fun to use ...... K8MKB 10 Troubleshooting Computer Power Supplies - Rule # 1: Be careful ...... W6WTU 14 Build This Simple SMT Station - Dinner and a movie? How about pizza and a project? ...... AA2JZ 23 How's That Thing Really Work, Anyway? - Part 1: Receivers ...... AA2JZ 25 Warblemania - and other QRP afflictions ...... NY9D 27 Breakdown in Cape Town - The...
Topics: radio, amateur, antenna, power, mhz, voltage, frequency, laser, amateur radio, radio today, power...
73 Magazine January 2003 (#506) Build This Amazing ESR Meter - A simple project for everybody's shack ...... K8ZOA 10 K.I.S.S. Trickle Charger - And the ABCs of battery maintenance ...... K9TRG 19 Experimenting with Hall-Effect Sensors - For fun and knowledge ...... W6WTU 25 On the Face of It, A Good Idea - How to ace those finishing touches on your home-brewed pride-and-joys ...... AA2JZ 29 Travels with Henryk -Part 9 - The Dominican Republic, where the main mode is merengue ...... SM0JHF 35...
Topics: radio, amateur, antenna, output, ham, voltage, frequency, led, battery, amateur radio, radio today,...
73 Magazine December 2002 (#505) Commercial-Quality Function Generator - Will you outlive it -or vice versa? ...... K8IHO 10 Shedding Some Light on Dimmers - Why not put one of these triacs to use? ...... W2GOM/7 22 Eager for Meager - Try an 11m vertical on 160 ...... AD1B 24 Shack Switch for Foot Fetishists - Not that it's That kinky ...... WA2OKZ 27 Ashore at Sacrifice Rock! - The saga of a masterful DXpedition ...... VU2SBJ 28 Hamfest Success Formula - How to make sure your 'fest is a...
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Topics: radio, frequency, amateur, antenna, mhz, ihe, thai, cap, december, amateur radio, radio today, web...
73 Magazine November 2002 (#504) Your Turn for a Coil Winder - The Gingery Universal Coil Winder can be an easy and handy addition to your bench ...... K8ZOA 10 Multiple CW Filters - Here are some clear descriptions and examples of how you can set up an active audio filter ...... W2GOM/7 16 Automotive Battery Voltage Monitor - Interesting to analyze, simple to build ...... KC5MFY 20 Travels with Henryk -Part 9 - CQ de Havana ...... SM0JHF 22 I Love My 80m Loop! - And you will, too! ...... KL7JR...
Topics: radio, amateur, antenna, ham, wire, power, frequency, ihe, amateur radio, voltage, radio today, ham...
73 Magazine October 2002 (#503) IF Test Box - A real "can"-do project ...... AA2JZ 10 Mobile Ham Repeater - Isn't it time your club had one? ...... W6WTU 14 Inside Today's Kit Biz - An interview with Marshall Emm N1FN ...... KF6FJU 23 Close Encounters of the 5R Kind - Our Fearless Phil moseys out to Madagascar ...... G3SWH 27 What's in a Name? - Badge, that is? A cabin fever cure-all ...... AA2JZ 33 Letter From the Other Side - Re: Celebrating the bisesquicentennial of a shocking...
Topics: radio, amateur, ham, ihe, power, thai, web, antenna, october, amateur radio, radio today, ham...
73 Magazine September 2002 (#502) Amplifier Testbench Report - Here's a look at broadband amps that's packed with useful insight ...... K8ZOA 10 2m/70 cm quad Revisited -Part 2 - Try out this new, improved update to a CQ article (July 1999) ...... K8IHQ 18 General-Purpose Interface Board for the ISA Bus - A simple, inexpensive alternative for interfacing resl-time, home-brewed applications to the PC ...... AB2LX 20 Inside a Lampkin - More secrets of deviant behavior ...... W6WTU 26 You Can...
Topics: amateur, radio, mhz, antenna, frequency, deviation, ham, signal, web, amateur radio, radio today,...
73 Magazine August 2002 (#501) You Can Build This VLF to HF Loop Receiving Antenna - Part 2 of 3 ...... K8ZOA 10 Vacuum Tubes: Romance and Reality - A (mostly) glowing tale ...... W8QYR 16 2 m/70 cm Quad Revisited -Part 1 - Tryout this new, improved update to a CQ article ...... K8IHQ 19 Twisted Tale: The Dial File - Ever wonder how dials evolved? Well, read this anyway ...... W6WTU 23 Twin for Two - Give this home-made twin loop for 2m a try -and be surprised ...... AC6XJ 30 This Thing Called...
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73 Magazine July 2002 (#500) You Can Build This VLF to HF Loop Receiving Antenna - Part 1 of 3 ...... K8ZOA 10 Ladder Crystal Filters for NBFM - Some tricks of the trade from the OM who literally wrote the book ...... N2DCH 16 Easy-Build Project of the Month - How about this prototyping bench DC PS? ...... K8IHQ 20 Tesla's Champions - Everybody should have some supporters like these ...... W8AHB 24 Make Your Own VHF DX! - Need a neat club activity? ...... WB9YBM 29 The 21st-Century Scrounger -...
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73 Magazine June 2002 (#499) 6m Fun Loop - A low-cost gain antenna for the VHF technician ...... N2DCH 10 Roll Your Own RF Transformers - But don't get Too wound up in it ...... K8ZOA 12 Build This Commercial-Quality Counter -Part 2 of 2 - Amaze your friends, and yourself! ...... K8IHQ 20 Temp-Controlled Solder Station - Here's a simple project to improve your bench ...... AA2JZ 25 Restoring an HQ-140-X Part 2 - This Hammarlund rig has always been a favorite ...... W6WTU 27 Travels with Henryk...
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73 Magazine May 2002 (#498) Build This Commercial-Quality Counter - Part 1 of 2, amaze your friends, and yourself! ...... K8IHQ 10 How I Build "Modified Ugly" - Would you call this "Maul-style" construction? ...... AA2JZ 14 Unmasking the Long Ranger - Measure weak signals up to 56 MHz with this dBm meter range extender, kemosabe ...... N2DCH 18 Travels with Henryk -Part 4 - All ashore at Malta ...... SM0JHF 24 Keying to a Different Drummer - This CW key is simplicity for...
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73 Magazine April 2002 (#497) Ham Window Dressing - If this nifty car frequency display doesn't draw gawks, nothing ever will ...... Rynone 10 SOS... SOS... Titanic! - Radio operators' courage still inspires amateurs ...... Garcia 14 Does Your Junk Box Runneth Over? - A true junkie explains how to get a grip ...... W6WTU 19 New Life for a Pierson KE-93 - Part 3 of 3 ...... W6WTU 22 The Call of the Maldives - 8Q7WH, that is ...... G3SWH 25 Easy-Build Project of the Month - This time: 400 kHz AC...
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73 Magazine March 2002 (#496) Switched Mode Power Supplies - Get out your calculator and have some fun ...... W2GOM/7 10 Vent-a-Fume - This project has produced more than its share of fans ...... AA2JZ 17 New Life for a Pierson KE-93 - Part 2 of 3 ...... W6WTU 19 Travels with Henryk -Part 3 - East meets West in the north ...... SM0JHF 24 One Repeater to Go, Please! - Another emergency tip from 73's Disaster Master ...... KE8YN/0 27 Understanding the CWTHA - This technical reprint about resonant...
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73 Magazine February 2002 (#495) Weather Sat Tracking is Awesome! - Real science means real fun for 8 to 12-year-olds! ...... VK2BXX 10 Not Simply Another Keyer! - That's right! It's better ...... W2GOM/7 16 Direct-Mount "J" Antenna for 440 MHz HTs - If you're looking for better performance ...... W4JC 21 New Life for a Pierson KE-93 - Part 1 of 3 ...... W6WTU 24 Lamps from Tubes - For fun and profit -and gifts! ...... WA2OKZ 28 LOPs to Think About - Come aboard for a great surplus...
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73 Magazine January 2002 (#494) Build a 1.2 GHz FM Repeater - With a lot of initiative and perseverance, these hams realized success ...... NY9D 10 AII-Star Expanded-Scale AC Voltmeter - Monitor your line voltage with this high-performer ...... K8ZOA 15 Travels with Henryk -Part 2 - SM0JHF shares some photos - and the fun of hamming ...... SM0JHF 22 VTVMs and FETVMs - Theory and practice ...... W2GOM/7 24 The ABCs of IRCs - Just what ARE International Reply Coupons, anyway? ...... G3SWH 27...
Topics: radio, amateur, voltage, ham, meter, digital, ardf, antenna, january, amateur radio, radio today,...
73 Magazine December 2001 (#493) Microwind to the Rescue! - Let the wind keep your emergency batteries charged ...... WA8YKN 10 Subdivision Subterfuge - A Houston homeowner handles his hamming ...... KD5IDU 17 IOTA -AS096 - That's St. Mary's Island to you ...... VU2SBJ 20 Bare Bones Battery Booster - A good project - as long as you understand the dangers and limitations ...... N0GJ 23 VOM Primer - This overview is helpful for beginners and old-timers alike ...... W2GOM/7 28 Travels with Henryk...
Topics: radio, amateur, antenna, ham, photo, december, meter, hams, tion, amateur radio, stepper motor,...
73 Magazine November 2001 (#492) Practical RF Ground Stations for AMSAT A0-40 - All you need to know ...... GM4PLM 11 Microwave Antennas for A0-40 - The expert speaks ...... GM4PLM 17 Modifying the TranSystem 3733 for Mode S - Get in on the fun! ...... KA0YOS 24 Build the FODTrack - How about a low-cost tracking interface? ...... KA0YOS 26 What Is an EasySat, Anyway? - Now you know ...... K5OE 29 The PCSat APRS Satellite - More fun on the horizon ...... WB4APR 33 All Aboard for ARISS - Amateur...
Topics: amateur, satellite, radio, antenna, amsat, mhz, aprs, antennas, ham, amateur radio, radio today,...
73 Magazine October 2001 (#491) Antenna Tuning at the Speed of Light - Build your own 8-channel fiber optic control system ...... WA6TLK 10 CTCSS Encoder-Decoder Test Device - Nice article + Useful piece of equipment = Construction fun! ...... W6WTU 16 Your Long-Lost Transistor Notebook - Part 4 of 4 ...... W6WTU 21 DTMF Remote Controlling - In somewhat fractured syntax, here's how to let your fingers do the talking ...... Sanati 25 The QRP Asylum That Almost Closed - The mad building spree...
Topics: radio, amateur, ctcss, ham, ihe, frequency, receiver, antenna, october, amateur radio, radio today,...
73 Magazine September 2001 (#490) The Cheapest Supplies Ever - Why not put a surplus computer PS to work in your shack? ...... W6WTU 10 Your Long-Lost Transistor Notebook - Part 3 of 4 ...... W6WTU 14 Movable Microphone Boom - Why not operate like a pro?! ...... W4DXV 20 Read All About It! - Part 10 of good stuff from The Hertzian Herald ...... K8JWR 22 Build This Narrowband Tunable Filter for Receiving PSK31 Signals - or at least think about it ...... N2DCH 24 One More Hospital Test - This...
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73 Magazine August 2001 (#489) Amazon Death Flight - When these missionaries -and hams- were shot down, the official apology was too little, too late ...... W8NXD 10 "CQ ET!" - The UFO Watchtower DXpedition ...... WA3QLW 12 The Wall-Wart Bible - Say "Amen!" to this treatise on troubleshooting these ubiquitous supplies ...... KJ4W 14 Return of the Wavemeter - Nostalgia? Fun project? Or both? ...... W6WTU 19 Your Long-Lost Transistor Notebook - Part 2 of 4 ...... W6WTU 24...
Topics: amateur, radio, august, ham, meters, ihe, antenna, photo, frequency, amateur radio, radio today,...
73 Magazine July 2001 (#488) The Antenna That Never Was - and the 4S7WHG DXpedition that Almost followed suit ...... G3SWH 10 Power Supplies Explained - The esoteric facts ...... W2G0M/7 16 QRP Asylum Update - The latest from our build-crazy ham ...... NY9D 23 Your Long-Lost Transistor Notebook - Part 1 of 4 ...... W6WTU 27 Read All About It! - Part 8 of good stuff from The Hertzian Herald ...... K8JWR The History of Ham Radio - Paris 7 and 8: Broadcast radio and the early '20s ...... W9CI 50...
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73 Magazine June 2001 (#487) EZ-Build Pre-Selector - Use a tuning cap from an old broadcast receiver ...... N2DCH 10 Bring Back the Magic! - Is this guy living in a dream world? You tell Us ...... G3LDI 20 Read All About It! - Part 7 of good stuff from The Hertaian Herald ...... K8JWR 24 The History of Ham Radio - Part 6: Across the Atlantic ...... W9CI, SK 28 Field Day 2000 with the Xerox ARC - Where every signal was -ahem! -easy to copy? ......W6WTU 32 Field Day Follies - Wherein some Yankee...
Topics: radio, amateur, antenna, ham, digital, frequency, satellite, june, photo, amateur radio, radio...
73 Magazine May 2001 (#486) Modular Remote Coax Switch - Build this handy device to save time, money, and XYL yelling ...... K8IHQ 10 "How High's the Water, Mama?" - The story of a packet public service project flooded with success ...... KC7IZH 16 Bookbind This! -Conclusion - Get organized, and save money, too ...... W6WTU 32 Preventive Brain Surgery for Icom Xcvrs - Trying to resurrect a comatose Icom transceiver can be bad news. Here's how to prevent a dreadful fate in the first...
Topics: radio, amateur, mhz, antenna, photo, ham, frequency, receiver, coax, amateur radio, radio today,...
73 Magazine April 2001 (#485) Sabah -Land Below the Wind - Come along on this DXpedition to 9M6 ...... G3SWH 10 Arachnida Warcum - Whatever you calf it, this WARC bands spider species is a tri-band delta loop well worth trying ...... VE3XI 16 Way Cool Rocket Project - Conclusion - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 18 Disaster Overkill - Say what you want about this ham's response to emergency preparedness -until you need him, that is .........
Topics: radio, amateur, antenna, ham, power, photo, april, frequency, meters, amateur radio, radio today,...
73 Magazine March 2001 (#484) Way Cool Rocket Project: Part 2 - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 10 Build Yourself an NVIS - If you want to talk to the guy in the next county on HF, of course ...... VE2EQL 18 Inside Digital TV/VCR Tuners - Part 7: Conclusion ...... W6WTU 19 Build This Variable AC Bench Supply - If you can find a Variac transformer, that is ...... K8IHQ 23 $5 Infrared Remote Tester - Build this and look like a hero .........
Topics: radio, antenna, amateur, ham, qrp, transmitter, kit, mhz, receiver, amateur radio, radio today, web...
73 Magazine February 2001 (#483) Way Cool Rocket Project, Part 1 - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 10 All About Class D Amplifiers - What you do know can't hurt you ...... W2GOM/7 18 Portable Personal Repeater - Handy, inexpensive, and fun! ...... WB6IQN 23 Inside Digital TV/VCR Tuners - Part 6: Making your own PC boards ...... W6WTU 25 Crystal Oven Controller - Build this solid state regulator for your oscillator oven assembly... OK, it's...
Topics: radio, amateur, receiver, transmitter, audio, power, voltage, antenna, ham, battery, amateur radio,...
73 Magazine January 2001 (#482) SV8 from the Geranium - Mykonos is a great DXpedition - once you get there ...... G3SWH 10 Inside Digital TV/VCR Tuners - Part 5: Decimal-to-binary conversion program ...... W6WTU 14 Transistor Bias: The Secret Story - Shore up some of your shaky transistor theory by taking this tutorial ...... W2GOM/7 18 ATV 23cm FM Receiver - Kiwi TV- Part 1: New Zealand-style ...... ZL1AAN 23 ATV Exciter - Kiwi TV -Part 2: Latest addition to the Kiwi 23cm project ...... ZL1AAN...
Topics: radio, amateur, antenna, frequency, mfj, mhz, ham, digital, receiver, meters, amateur radio, radio...
Topics: radio, amateur, voltage, circuit, frequency, meter, power, mhz, coax, amateur radio, radio today,...
73 Magazine November 2000 (#480) Build This IP3 Test Set - A receiver's third order input intercept point is more than just a mouthful ...... N2DCH 10 Inside Digital TV/VCR Tuners - Part 3: Data receiver for testing ...... W6WTU 16 A BFO for Your SW Rx - With a $10 Ten-Tec kit ...... W4PGI 22 Super-Simple 80m Fox - Build this easy and inexpensive QRP rig, perfect for dual-band foxboxes ...... K0OV 24 You Can Build the FoxFinder 80! - Here's how to get started in the exciting world of 3.5 MHz...
Topics: radio, receiver, antenna, amateur, ihe, signal, circuit, kit, khz, output, amateur radio, radio...
73 Magazine October 2000 (#479) With Fingers Crossed - The latest on Phase 3-D ...... G3RWL 10 Low-Cost P3D Antenna Setup - These three antennas are perfect for everybody ...... K5OE 17 Cruising for Satellites - If you can get away with it, this is the best of both worlds ...... W5ACM 22 From Russia, With Satellite - "The name is Brown, Jerry Brown" ...... 27 Inside Digital TV/VCR Tuners - Part 2: Data transmitter for testing ...... W6WTU 30 OSCAR-10 Antenna System - A look at the...
Topics: amateur, antenna, radio, satellite, antennas, mhz, mfj, kit, receiver, amateur radio, radio today,...
73 Magazine September 2000 (#478) The Cap'n Crunch LOWFER Loop - This lightweight longwave antenna could become a classic ...... G2BZQ 10 Generating SSB - Use this tutorial to better understand -or better build -your next project ...... W2GOM/7 13 Ham Ambassadors - Will you help capture the would-be hams that could slip away? ...... WB6NOA 19 School's In! - Go on a "lecture circuit" to the local school - and promote your favorite technical hobby ...... WA9PYH 24 Adopt a School - More...
Topics: radio, amateur, frequency, ham, antenna, mhz, tuner, receiver, hams, amateur radio, radio today,...
73 Magazine August 2000 (#477) Really PIC Key, PIC Key - Add memory functions to your PIC Keyer project ...... UY5DJ 10 10m Junk Box Amp - More tube-type fun! ...... K4CRS 16 Vaya Con (Ra)Dios - The radio amateurs of Spain - part 2: Mallorca and a side trip to the Principality of Andorra ...... WB2AQC 19 Cold Fusion, Hot Speculation - OK, experimenters, get ready to do this on your kitchen table ...... W6HDM 28 For the Above and Beyond Crowd - Here's a neat RF modulator/detector for use with...
Topics: radio, amateur, antenna, program, ham, meters, august, mhz, amateur radio, thai, front panel,...
73 Magazine July 2000 (#476) The Universal Loop - A novel, efficient. modularly constructed receiving loop antenna covering from 55 kHz to 40 MHz (or even more) ...... G2BZQ 10 String Up the GPU 80 - This compact antenna could be part of your clandestiny ...... G2BZQ 14 Return of the Amazin' Hall Tree Vertical - This time for 40/30 ...... K5CW 18 Twinleads To Go - Keep these emergency antennas for 2m and 70cm in your glovebox ...... W4JC 20 The Hybrid Vee - Revisit the original Taylor Vee -and...
Topics: antenna, radio, amateur, loop, frequency, mfj, ham, mhz, july, amateur radio, radio today, mfj cub,...
73 Magazine June 2000 (#475) Ah, the Technomadic life! - This special to 73 on mobiling is... well... special ...... N4RVE 10 Electronics Bench for Dummies - And it doesn't take an Einstein to know how important a good bench -like this one -really is ...... N2XS 18 Tuner King Strikes Again - Part 1: Make a basic VHF/UHF signal source from your TV/VCR tuner ...... W6WTU 24 Well, Not Exactly - Some of the finer points about using your O'scope ...... K5CW 28 Straight Talk about ClearSpeech - This...
Topics: radio, amateur, frequency, power, signal, mhz, tuner, antenna, photo, amateur radio, radio today,...
73 Magazine May 2000 (#474) When Less is More - Check out the excitement of QRP ...... N1FN 10 Build and Compare - Learn about receivers from these two simple designs ...... KG4CUY 18 Read All About It! - Part 3 of good stuff from The Hertzian Herald ...... K8JWR 27 You're So Vain - You probably think this article is about you ...... AC3L 36 Exploring the Kenwood TM-D700A - Part 1.. Overview and installation ...... KE8YN/4 14 QRP with the OHR 500 - Missed out on building an HW-9? Here 's the...
Topics: radio, amateur, ham, qrp, power, kit, island, mhz, antenna, receiver, amateur radio, radio today,...
73 Magazine April 2000 (#473) Morse Code -The Once and Future Mode - Will you outlive it -or vice versa? ...... N1FN 10 The Long-Lost Art of Conversational CW - Banging away for long chats can be fun -if you know what to say ...... WF6P 18 Make Copies of This Article - Then drop them off at your local school(s) ...... W8DYF 20 The Finger - Here's a positive way to respond when someone gives it to you ...... K9AZG 22 Try a Sensor Keyer - For almost pressure -free CW ...... WB4TED 28 Vaya Can...
Topics: radio, amateur, antenna, morse, april, ham, kit, mhz, ardf, amateur radio, radio today, morse code,...
73 Magazine March 2000 (#472) The Quest for Super Sounding Audio - How to improve your on-the-air image by 10 dB ...... K4TWJ 10 Salvage Special: TV/VCR Tuner Receiver - Watch the neighbor's curb for an old VCR! ...... W6WTU 16 The Care and Feeding of NiCds - Some clever tips for long life, plus a neat home-brew charger ...... K9TRG 21 Secrets of Transmission Lines - Part 7: Impedance matching ...... KE2QJ 23 The DX Partyline low Noise Wavecatcher - Here's a great noise reduction loop for...
Topics: radio, amateur, antenna, mhz, ham, noise, power, audio, frequency, amateur radio, radio today, ham...
73 Magazine January/Feb 2000 (#471) New Millennium Wish List - A budget-conscious guide to exploring new amateur radio horizons ...... K4TWJ 10 Buffalo Springs Lake Half-Ironman Triathlon - Ham PR at its best ...... KC5VKB 14 Junk Box Audio Test Generator - This scavenged helper is easy to build and fun to use ...... Sellen 22 Read All About It! - Part 2 of good stuff from The Hertzian Herald ...... K8JWR 26 73's DX Dynasty Award Winners ...... Staff 29 Secrets of Transmission Lines - Part 6:...
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73 Magazine December 1999 (#470) The X(Mas)-Files ...... Staff 6 Big-Time Bench Supply - This highly regulated SCR design might be overkill, but it's still fun to build ...... Sellen 10 Secret Death Ray - Or is HAARP a useful science tool? ...... N7MGT 14 TV Tutor - How to get started in SSTV ...... ZL1AAN 22 Why Not Renew On-line? - Here's how to untangle the FCC Web ...... AC3L 24 Read All About It! - Part 1 of Techno-Trivia from The Hertzian Herald ...... K8JWR 26 A Cold Meal and a Hot Radio...
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73 Magazine November 1999 (#469) Need a UHF Dipper? - Part 2: Coupling to an outside environment ...... W6WTU 10 Planning a DXpedition - Here's what to do if you take Wayne's advice ...... W4DC 14 Why No Beta-Morse? - An amusing way to preserve your Morse code ...... VE2MHZ 18 Building a Better Collins - Add this $1 solid state replacement part to your 30S1 ...... W2CQM 19 Isotron Notes - Simple tips straight from the Hart ...... AD1B 24 Basic Transceiver Tester - This fancy spin on some common...
Topics: radio, amateur, loop, antenna, power, mhz, kit, thai, battery, amateur radio, radio today, sense...
73 Magazine October 1999 (#468) Need a UHF Dipper? - Part 1: Old TV tuners to the rescue! ...... W6WTU 10 HT Porta-Power - Project Portable extended power pkg for HTs ...... WB3CEH 15 FM CW! - Repeater code-practice sessions ...... WB9YBM 16 FYI: FQY - Another look at the Fractal Quad Yagi ...... KF7BS 18 Secrets of Transmission Lines - Part 3: More AC review ...... KE2QJ 22 The History of Ham Radio - Parts 1 and 2: From the birth of the wireless ages to 1920 ...... W9CI 31 The Digital Port -...
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73 Magazine September 1999 (#467) PIC Key, PIC Key - This simple CW keyer is a great way to learn about PICs ...... UY5DJ 10 Y2K Portable J-Pole - What emergency will you need to handle? ...... WA8TXT 16 Defogging Microstrips - An intro to microstripline filters ...... WA9PYH 19 Secrets of Transmission Lines - Part 2: Review of AC fundamentals ...... KE2QJ 26 Getting Your Foot in the Public Service Door - Here's how to get your club invoIved -and appreciated ...... KN4HL 30 Simple RF Signal...
Topics: radio, amateur, frequency, antenna, mhz, receiver, kit, audio, power, amateur radio, radio today,...
73 Magazine August 1999 (#466) PIC-based DTMF Project - Build this decoder and learn ...... KC3XM 10 How to Turn a Deaf Ear - with your antenna ...... VK2AT 13 Secrets of Transmission Lines - Part 1: Intro and dummy load project ...... KE2QJ 16 Kiwi SSTV - How they do it in ZL-Iand ...... ZL1AAN 20 All About Op Amps - And then some ...... W2GOM/7 24 The Missing Link: A PSK Interface - Stop just reading about it - put this new mode into action! ...... WA8TXT 27 Radio Fun in the Sun - Here's a...
Topics: radio, amateur, antenna, ham, power, meter, mfj, ihe, mhz, amateur radio, radio today, power...
73 Magazine July 1999 (#465) Emergency Power for Hams - Including your own experimental wind generator ...... WA8YKN 10 The VK Winged Flapper - Only an Aussie would come up with this mobile antenna design ...... VK2AT 20 Regens for the Millennium - Part 2: Winding Coils ...... KA9GDL 22 You, Too, Can Be an SOB - Hams should be heard but not seen- put your left hand on the Callbook and repeat after me ...... K9AZG 27 The Amazing Wiebelfeltzer - This CW filter is semi-analog, quasi-digitial, and...
Topics: radio, amateur, power, antenna, ihe, thai, kit, mfj, july, amateur radio, radio today, web site,...
73 Magazine June 1999 (#464) Regens for the Millennium - Part 1: A new look at an old friend ...... KA9GDL 10 Three-Element Circular Quad for 10m - For under $65! ...... K8IHQ 17 From the Ukraine: A Radio Amateur's Story - Part 2: Water-cooled amp? Why not? ...... UY5DJ 21 Easy Antenna Reference - Part 2: More options ...... VK2AT 26 Screwy Mobile Antenna Mods - Fine-tune that screwdriver-type with these helpful tips ...... WB4RNO 28 Operating Crystals on the Fifth Overtone - Sounds kinda New...
Topics: radio, antenna, amateur, meter, power, mhz, kit, ham, frequency, amateur radio, radio today, power...
73 Magazine May 1999 (#463) The Card-File 40 - Here's a direct-conversion QRP transceiver you can build ...... KC3ZQ 10 The EZ-BZ Deck Antenna - A compact 20-meter dipole with linear loading and a bend ...... AB2BZ 16 Home-Brewing a 3 kW+ Dummy Load - Corral some Cantennas to check out your big gun amplifier ...... W2CQM 22 Networking with Thevenin and Kirchhoff - Helpful friends when you go into analysis ...... W2GOM/7 30 Tri-band Vertical Array for Big 120 degree Bandwidth Signal - (Or, what...
Topics: radio, amateur, antenna, frequency, mhz, qrp, coax, ham, meter, amateur radio, radio today, zip...
73 Magazine March 1999 (#462) The Pluck of the Irish - Was Wee Mac a leprechaun or a pirate-or both? ...... K9AZG 10 Transmitting Ferrite Loop for 80/160 - Thirty years of experimenting ...now it's your turn! ...... G2BZQ 14 Signals From the Ice: Now That's Really Cool! - Here's what happens when hams meet Alaska's Matanuska Glacier ...... KL7JR 20 Anti-Metric? - You already use it more than you think! ...... WD0GCK 23 Everyman's Guide to Active Filter Design - Now you know ...... KC3ZQ 26 Keys...
Topics: radio, amateur, antenna, frequency, filter, metric, ferrite, ham, power, amateur radio, radio...
73 Magazine February 1999 (#461) We Must Be Dreaming - A home-brew receiver project! ...... Duncan 10 LM- and BC-221 Frequency Multiplier - Generate detectable signals up to 1000 MHz ...... W6WTU 17 The Ultra-Simple 20 - The simplest solution to any problem is the best ...... G2BZQ 21 The Franklin VFO - A nifty chill-chasing project for the serious home-brewer ...... W4LJD 24 Mods for the OHR 100A - Here's how to make a popular QRP rig even better ...... W4LJD 30 Here Comes the Sun - Part 2:...
Topics: antenna, radio, amateur, frequency, mhz, circuit, kit, audio, receiver, amateur radio, radio today,...
73 Magazine January 1999 (#460) Home-brew a Customized HF Amplifier - Visualize, contrive, create! ...... WI5W 10 3 Ls 4 2m - This three-element stubfed coaxial vertical is dirt cheap, sturdy, and very effective ...... WD4KMP 18 The Evolution of Power Supplies - Part 2: Switching techniques ...... W6WTU 21 From the Ukraine: A Radio Amateur's Story - Behind the Iron Curtain, home-brewing was the mother of invention ...... UY5DJ 24 Here Comes the Sun - Part 1: Cycle 23 and you ...... WA8YKN 28...
Topics: radio, amateur, ham, power, antenna, solar, mhz, transmitter, feb, amateur radio, radio today,...
73 Magazine December 1998 (#459) Probing Auto Electronics - Help your neighbor identify his car's problem and be an electronic's hero! ...... W6WTU 10 Announcing the QRPeanut - Here's a compact QRP transmatch you can build for next to nothing ...... N5GZH 14 Keys to Better Operating - Yes, much of it is common sense ...... W6BNB 17 Electronic Bug Emulator - Put some personality back into your CW ...... W4LJD 27 Low-Voltage Detector - for a number of uses ...... W6WTU 31 George's XE-Ient...
Topics: radio, ihe, amateur, frequency, antenna, ham, power, thai, circuit, amateur radio, radio today, ham...
73 Magazine November 1998 (#458) Build the Fox TTL Foxhunt Transmitter - Simple, inexpensive, and the end of your excuses for not trying T-hunting ...... AH2AR/8 10 The Evolution of Power Supplies - Part 1: dynamotors and vibrators ...... W6WTU 13 Surface Mount SW RF Booster - Easy-to-build design, plus high-pass filter to boot ...... Davidson 16 VHF/UHF Signal Source - There's always room for another piece of test equipment! ...... W6WTU 21 And the (Zero) Beat Goes On... - More on the...
Topics: ihe, amateur, radio, thai, signal, receiver, noise, antenna, frequency, amateur radio, radio today,...
73 Magazine October 1998 (#457) The Ins and Outs of Surface-Mount - Everything you need to know to get started or get better ...... Davidson 10 The Ideal Log? - This computer-style card file may be for you ...... W6BNB 21 Intro to Superhets - Part 3: Accessories and conclusion ...... W6WTU 26 G'Day, OM! - On the road with the first-ever all-ham RV tour of Australia and New Zealand ...... N5MFG 30 Meeting Your Match - The fine points of understanding matching networks ...... W2GOM/7 The Perfect...
Topics: radio, amateur, smd, ihe, power, thai, voltage, ham, antenna, amateur radio, radio today, field...
73 Magazine September 1998 (#456) The Ultimate Green Radio - great "Beginners Night" project! ...... W7DE 10 What's the Scoop on the Lazy Loop? - Here's how multi-band wire antennas measured up in real-world comparisons ...... WA2UGT 16 Intro to Superhets - Part 2: From oscillators to detectors ...... W5WTU 22 Building the NHRC-4 Linking Repeater Controller - And get with the program ...... N1KDO, KA1OKQ, N1LTL 28 Multibanding the Fracvert Half-Wave - Here's a wire vertical with...
Topics: antenna, radio, amateur, ihe, signal, receiver, ham, audio, coax, amateur radio, radio today, ham...
73 Magazine August 1998 (#455) A Silk Purse... - Easy upgrades for Heathkit's SB-104 transceiver ...... K9ARF 10 Power to the People! - To hams who build this tuned input network, that is ...... W2CQM 14 Secrets of Deviant Behavior - Measuring FM deviation need not be a mystery ...... W6WTU 18 Only One Antenna - All about multibands ...... W2BLC 21 Cool It! - Cold facts about the hot topic of heat transfer ...... W2GOM/7 24 Intro to Superhets - Part 1: History and overview ...... W6WTU 38...
Topics: radio, antenna, amateur, ihe, impedance, frequency, thai, august, amateur radio, ham, radio today,...
73 Magazine July 1998 (#454) Raising the RASER to New Heights - A two-element beam for 80 meters ...... W2OZH 10 Build This Simple CW Identifier - You, too, can program EPROMs ...... KA2CWL, K2MQJ 15 FM Revisited - Secrets of stuff you thought you knew ...... W6WTU 21 Vintage Values - Heading for a hamfest? Tempted by the timeless? ...... W2BLC 25 Home-Brew RF Ammeter for the Shack - Another fun project from W4LJD ...... W4LJD 29 Take the Jekyll and Hyde Test - Which shack is yours? .........
Topics: radio, antenna, amateur, ihe, july, ham, thai, meter, power, amateur radio, radio today, web site,...
73 Magazine June 1998 (#453) A Pentium-Style Positive and Negative PS - Reading about new technology is great, but using it is even better! ...... N4UAU 10 The Fun Radio - or, wasn't this what attracted you to the hobby in the first place? ...... W6WTU 17 Meet the Marvelous MicroVert - A 20-inch vertical for 20 meters? ...... W4DXV 21 Home-Brew This Power Cube - First step in rebuilding your vintage RF deck ...... W2CQM 25 Techno-Trouble II - All right, let's see how you do with these .........
Topics: radio, amateur, ham, antenna, power, mhz, june, frequency, hams, amateur radio, radio today, ham...
73 Magazine May 1998 (#452) An RF sensing Alarm - Save your power amplifier stages ...and your reputation ...... VF2ZAZ 10 A Pleasant Visit to the DDS - Direct Digtal Synthesis is the latest technology in signal generation ...... W6WTU 15 Sensitivity Training - Some pros and cons of increasing receiver sensitivity ...... W2GOM/7 19 Joy's "Loud Enough" Metronome, Part 2 - Mr. Gizmo puts it all together ...... W1RXV 25 The Taylor Vee 20m Antenna - "Anything you don't understand...
Topics: radio, amateur, antenna, frequency, thai, mhz, output, ihe, circuit, signal, amateur radio, radio...
73 Magazine April 1998 (#451) De-Noising your PC - Cure the transmitter in your PC ...... WA9PYH 11 Modifying Your Ramsey Transceiver Kit - One stop closer to the ultimate ham experience ...... N0BLX 18 Out of Sight, Out of Mind - Discretion is the better part of neighborhood amity. Part 2: Hardware ...... WB4BNU 20 Techno-Trouble for Know-It-Alls - How many of these 50 questions can you answer correctly? ...... WB2WIK/6 28 Hamtronics' CC432-5 Receive Converter Kit - Straight-forward building,...
Topics: antenna, radio, amateur, voltage, mhz, frequency, output, loop, power, amateur radio, radio today,...
73 Magazine March 1998 (#450) Truckez-Vous Mon Boat? - Ham friends to the rescue for Voyageur ...... N4UAU 10 Wouldn't You Really Rather Drive A BUIC? - Part 2: software for your interface circuit ...... K8KWD 17 Getting High the Ham Way - Adventures in ATV rocketry ...... KB9MRB 23 High Impedance Analog Volt/Test Meter - Here's a useful gadget to build while you wait for spring! ...... W6WTU 26 Amazin' Hall Tree Vertical - Grab your coat and take your hat ...... K5CW 30 The ZenerMeter - A test...
Topics: antenna, radio, amateur, meter, frequency, ham, mhz, power, antennas, amateur radio, radio today,...
73 Magazine February 1998 (#449) Wouldn't You Really Rather Drive A BUIC? - The Basic Universal Interface Circuit ties your computer to your rig. Part 1: hardware ...... K8KWD 10 Tutorial and Tester for JFETs - Big learning from a little project ...... W2GOM/7 16 All-Copper 17 Meter X-Beam - A nearby hardware store, a free afternoon ...... WA2UGT 21 Preparing for the Big One - Don't get caught short in a disaster! ...... XF1/KB6ASH 24 Saluting the Flag - Another twist to the delta loop .........
Topics: radio, amateur, antenna, ham, circuit, voltage, february, oscillator, frequency, amateur radio,...
73 Magazine January 1998 (#448) Get Active! - A nice amp project for building your own active antenna ...... W2GOM 10 Upgrading the 209 - Add this simple resistance meter to your MFJ antenna analyzer ...... KG5CM 15 Five-Band Magnetic: Loop Antenna - Build a loop for QRP, and tune it up just right ...... K2KSY/HL9BK Electronic Construction from A to Z, Part 3 - Everything you wanted to know about building stuff but were afraid to ask ...... AA0XI/VK5FN 22 Mount Up! - Try this easy cell...
Topics: radio, antenna, amateur, frequency, ham, mhz, hams, island, kit, amateur radio, radio today, ham...
73 Magazine December 1997 (#447) Distributed Capacity Folded Loop - This ceiling-mount antenna will really go to your head! ...... W6NBC 10 How to Silverplate RF Tank Circuits - A simple and inexpensive process to reduce losses ...... WB2CQM 18 Build Your First Kit! - Just follow one hams simple advice ...... N0BLX 24 Limited Space Antenna - Short of real estate? This might help! ...... HL9BK/K2KSY 27 How to Build A Great Ham Club - Good advice from the PR master ...... W2NSD/1 29 Electronic...
Topics: amateur, radio, antenna, loop, ihe, ham, circuit, solder, kit, amateur radio, radio today, special...
73 Magazine November 1997 (#446) How to Design Your Own HF Antenna - No excuses after this ...... VA3ACK 10 Readin', Writin', and Robotin' - Is your high school entered in FIRST? ...... Gray 17 Our Friend Pythagoras - Pop quiz: Who can state the Pythagorean Theorem? ...... N0BLX 19 Electronic Construction from A to Z - Everything you wanted to know about building stuff but were afraid to ask ...... AA0XI/VK5FN 21 The Table Topper 160-Meter Loop - Compact, low-noise -and effective ...... G2BZQ...
Topics: radio, amateur, antenna, voltage, thai, ham, power, meter, radio today, amateur radio, power...
73 Magazine October 1997 (#445) Surface Mount Devices - Everything you didn't want to -but should -know ...... W6WTU 10 El Cheapo - Rub shoulders with the big boys on 20 meters, without shelling out megabucks! ...... 4X1MK 15 APRS Network Guidelines - 20 tips for increasing efficiency ...... W9IF 19 Phased Trapped Verticals for HF - Simple ideas, simple to build ...... KD7FY 21 Simple Signal Injector/Tracer - Troubleshooting made easy ...... W4LJD 23 Where's the Manual? - Tracking down those...
Topics: radio, amateur, antenna, ham, signal, mhz, power, solder, digital, amateur radio, radio today,...
73 Magazine September 1997 (#444) Video Transmitter - Delta -the ATV transmitter you can change to fit your needs. Three bands, one design ...... KC5AWJ 9 Explorers, Adventurers, and Experts - How would you rule on this? ...... KB9FO 20 The New Emergency Alert System - Don't tune out that emergency broadcast test just because the Cold War's over! ...... WD8DAS 30 Holiday of a Lifetime - Ham friends are lifelong friends -even if you're meeting them for the first time! ...... G3LDI 32 Inside...
Topics: radio, antenna, amateur, ham, mhz, frequency, license, signal, ihe, radio today, amateur radio, ham...
73 Magazine August 1997 (#443) A Free Repeater, Free HTs and Some Good Ol' PR - Would your employer pitch in? ...... WA9PYH 10 Figuring RF Exposure - New standards can help avoid potential hazards ...... W6YBT 16 Antennas for Amateur Television, Part 2 - See Part 1 in July's 73 ...... K0NM 17 Negative Resistance RF Pre-Selector - An easy way to soup up that old superhet ...... W2GOM/7 Emergency Communications - The only salvation for ham radio? ...... WB9MZL 30 At Sea About Marine Mobile...
Topics: antenna, radio, amateur, frequency, signal, ham, receiver, ihe, hams, amateur radio, radio today,...
73 Magazine July 1997 (#442) ATV is Here to Stay! - Getting started with amateur television ...... W5ACM 10 How to See What You Hear - Warning! This is easy! ...... KC5ODM 14 C-Band low Noise Amplifier - Use discarded satellite receiver parts to soup up your ATV system ...... WD5BQN 19 Video Titlers for ATV - If you're serious about ATV, a video titler is the way to go ...... N5JXO 21 Antennas for Amateur Television, Part 1 - An overview of the most useful ...... K0NM 27 Home-brew Yagis For...
Topics: amateur, radio, antenna, atv, ham, july, antennas, frequency, thai, amateur radio, radio today, ham...
Topics: antenna, radio, amateur, ihe, signal, frequency, voltage, mhz, arc, amateur radio, radio today, ham...
73 Magazine May 1997 (#440) Build an Audio Multiplexer for Your Frequency Counter - Count CTCSS tones without expensive commercial equipment ...... KB8XI 10 Build The Bioelectrifier - Can you heal yourself and take a poke at the medical establishment at the same time? ...... W6WTU 13 Multi-Band Remotely-Tunable Inverted L Antenna - Heres a neat 160-40m wire antenna project using flexible parts-placement techniques ...... WB2CQM 20 Ham Vacation - A six-week journey through YugosIavia .........
Topics: radio, amateur, antenna, signal, frequency, thai, circuit, ham, amateur radio, radio today, front...